Don't expect miracles from a DC or scheme change
Very few DC's are capable of coming in and making serious improvement in the first season. I'm sure the Saints situation gives the candidates pause.
If I was a DC with a good resume, I would ask Payton 2 things:
1. Whether he has plans to stop scoring so quickly.
2. What Spags did wrong that got him fired.
If I was Payton, I would ask the candidates to give me several examples their talent evaluation skill.